US20140188049A1 - Anchoring screw device - Google Patents

Anchoring screw device Download PDF

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US20140188049A1
US20140188049A1 US14/161,907 US201414161907A US2014188049A1 US 20140188049 A1 US20140188049 A1 US 20140188049A1 US 201414161907 A US201414161907 A US 201414161907A US 2014188049 A1 US2014188049 A1 US 2014188049A1
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screw
windings
wall
tube
hollow
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Erwin de Winter
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A61M25/04—Holding devices, e.g. on the body in the body, e.g. expansible
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00004—(bio)absorbable, (bio)resorbable, resorptive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B2017/0647—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks
    • A61B2017/0648—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks threaded, e.g. tacks with a screw thread
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B2017/0649—Coils or spirals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1107—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis for blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1139—Side-to-side connections, e.g. shunt or X-connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/3484—Anchoring means, e.g. spreading-out umbrella-like structure
    • A61B2017/3488—Fixation to inner organ or inner body tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A61M2025/0286—Holding devices, e.g. on the body anchored in the skin by suture or other skin penetrating devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0208—Subcutaneous access sites for injecting or removing fluids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/04—Access sites having pierceable self-sealing members
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof

Definitions

  • the present invention relates to anchoring a SCREW-DEVICE onto a tube-like structure, for example a blood vessel, in such a way (1) that a needle or a catheter can be passed safely into the hollow structure and (2) that this needle or catheter can be positioned firmly in the vessel so that it cannot slip out or be displaced (i.e., be carried away by the fluid in the vessel).
  • the firm and stable fixation of a catheter into the wall of a hollow structure is essential since the catheter should under no circumstances fall out of the vessel or wander off into the vessel.
  • some hollow structure are embedded in surrounding tissue which enables the catheter to stay in place. This is the case, for example, with the blood vessels in a limb. It is completely different in the thorax, skull, or abdomen, where hollow structure are surrounded by less connective tissue and a catheter can easy slip out or be displaced. To prevent this, the catheter has to be fixated by suturing it to the wall of the vessel, but this is difficult and time consuming.
  • the present invention the ASD, can easily be screwed onto the vessel-wall, where it gives a maximum stability and support for the catheter, which can then safely be inserted into the vessel.
  • Interventional fields include diagnostic procedures that involve the implantation of a catheter or needle; and therapeutic procedures that involve interventions (such as placing a catheter for medication) or that involve surgical operations, laparascopy, possibly in combination with endoscopic procedures.
  • the invention makes it possible to anchor a hollow structure, like a blood vessel, easily and quickly. More specifically, the ASD allows the physician dealing with medical intervention to make a stable and safe connection with a hollow structure in such a way that a catheter can be firmly positioned without any need for time consuming suturing.
  • FIGS. 1 a and 1 b illustrate two embodiments of the ASD
  • FIG. 1 c illustrates the ASD inserted onto the wall
  • FIG. 2 illustrates the ASD filled with thrombostatic or haemostatic material
  • FIG. 3 a illustrates a lateral view of an ASD with a removable head
  • FIG. 3 b illustrates a top view of the ASD of FIG. 3 a with a removable head
  • FIG. 3 c illustrates an in situ view of the ASD of FIGS. 3 a and 3 b , with the removable head as positioned into the wall;
  • FIG. 3 d illustrates the ASD with removable head of FIGS. 3 a - 3 c, showing a view of the way in which the removable head is attached to the body of the ASD.
  • the ASD 1 takes the form of a hollow screw, with an ending that is not—as in the regular screw—a point, but one full spiral winding (360 degrees).
  • the end of the winding is sharp and round, i.e., it is non-cutting but it is capable of perforating the wall of the hollow tube-like structure in which it is screwed.
  • the sharp, round point 10 is bent inwardly and downwardlly in an angle of 10 to 20 degrees (.alpha.) (see FIG. 1 a ).
  • the sharp, round, non-cutting point 100 may bend downwardly in an angle of 90 degrees (.alpha.) (see FIG. 1 b ).
  • the end resembles a cork-screw, but the end is not situated in the middle of the final winding but on the periphery.
  • the ASD 1 shown in FIG. 2 is the same as mentioned in FIGS. 1 a - 1 c , but with the body of the screw filled with thrombostatic or haemostatic material 12 that functions as a sponge against leakage of the vessel after the catheter has been removed.
  • FIGS. 3 a - 3 d illustrate an ASD 200 with a removable head.
  • This device consists of two basic parts: first, the removable head 14 with applicator 16 (i.e., a long, thin shaft with a handle 18 used to drill the head into the vessel wall) and second, a hollow ASD 20 with a hollow screw of three windings, which remains in place (i.e., in the vessel wall).
  • applicator 16 i.e., a long, thin shaft with a handle 18 used to drill the head into the vessel wall
  • a hollow ASD 20 with a hollow screw of three windings, which remains in place (i.e., in the vessel wall).
  • the removable head 14 consists of two windings, and ends in the form of a corkscrew 22 (see FIGS. 3 a , 3 b ). This is, again, a round, sharp, non-cutting point 24 .
  • the head forms one whole with the applicator. Once the head 14 is in place (i.e., in the middle of the vessel wall) (see FIG. 3 c ), it is removed, together with the applicator 16 , from the rest of the ASD that stays within the vessel wall.
  • the second part is the body of the ASD 20 is shown in FIG. 3 d . It consists of three hollow windings attached to the head by means of internal, anti-clockwise windings. Every winding is wider than the previous one, thus expanding the vessel wall.
  • the opening in the wall is made by the head in a non-occlusive way, i. e. the receptor vessel need not be temporarily occluded.
  • the diameter of ASD may vary from 1 millimeter to 2 centimeters, or even more.
  • the ASD is made of inox material, or titanium, or super-elastic materials such as nitinol, or synthetic materials, or even resorbable materials.
  • the material may vary from 0.1 mm to any desirable thickness.
  • the elasticity of the ASD depends on the material used.
  • the ASD is screwed one turn of 360 degrees into the receptor wall. This ensures a stable fixation on the wall. A needle or a catheter is then inserted through the ASD into the wall, and is fixed onto the ASD so that it cannot slip out of the vessel or ‘wander off’ in to the vessel.
  • the screw device can be manufactured commercially and be employed to anastomose two vessels of different or identical sizes. It can be used in all domains of vascular surgery, heart surgery, and neurosurgery.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Surgical Instruments (AREA)
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Abstract

A mechanical device for anchoring hollow tube-like structures in the human body, such as blood vessels and ureters. It facilitates positioning needles or catheters in blood vessels and it prevents those from dropping out of the vessel or from “wandering off” in the vessel. The device can be used in every interventional medical situation for diagnostic or therapeutic purposes. The device is very easy to fix onto the vessel wall. Screwing is a fast technique saving operating time and requiring only basic microsurgical skills.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This is a Continuation Application of U.S. application Ser. No. 12/556,114 filed Sep. 9, 2009, which is a continuation of Ser. No. 10/554,947 filed Feb. 2, 2006, now abandoned, which is a National Stage Application of PCT/BE03/000120 filed Jul. 7, 2003, which claims priority from PCT/BE03/000074 filed Apr. 28, 2003. The entire disclosures of the prior applications are hereby incorporated by reference.
    • FIELD
  • The present invention relates to anchoring a SCREW-DEVICE onto a tube-like structure, for example a blood vessel, in such a way (1) that a needle or a catheter can be passed safely into the hollow structure and (2) that this needle or catheter can be positioned firmly in the vessel so that it cannot slip out or be displaced (i.e., be carried away by the fluid in the vessel).
    • BACKGROUND ART
  • In many interventional medical procedures we want to reach hollow structures like a blood vessel or a ureter. During these procedures we want to place a catheter or a needle into the hollow structure to have access to it, mostly for therapeutic reasons such as the administration of medication, the placing of a stent or a coil, dilatation and so on. Sometimes access to the aforementioned hollow structures is necessary for diagnostic purposes.
  • The firm and stable fixation of a catheter into the wall of a hollow structure is essential since the catheter should under no circumstances fall out of the vessel or wander off into the vessel. In the human body some hollow structure are embedded in surrounding tissue which enables the catheter to stay in place. This is the case, for example, with the blood vessels in a limb. It is completely different in the thorax, skull, or abdomen, where hollow structure are surrounded by less connective tissue and a catheter can easy slip out or be displaced. To prevent this, the catheter has to be fixated by suturing it to the wall of the vessel, but this is difficult and time consuming.
  • The present invention, the ASD, can easily be screwed onto the vessel-wall, where it gives a maximum stability and support for the catheter, which can then safely be inserted into the vessel.
  • Interventional fields include diagnostic procedures that involve the implantation of a catheter or needle; and therapeutic procedures that involve interventions (such as placing a catheter for medication) or that involve surgical operations, laparascopy, possibly in combination with endoscopic procedures.
    • SUMMARY OF INVENTION
  • The invention makes it possible to anchor a hollow structure, like a blood vessel, easily and quickly. More specifically, the ASD allows the physician dealing with medical intervention to make a stable and safe connection with a hollow structure in such a way that a catheter can be firmly positioned without any need for time consuming suturing.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIGS. 1 a and 1 b illustrate two embodiments of the ASD;
  • FIG. 1 c illustrates the ASD inserted onto the wall;
  • FIG. 2 illustrates the ASD filled with thrombostatic or haemostatic material;
  • FIG. 3 a illustrates a lateral view of an ASD with a removable head;
  • FIG. 3 b illustrates a top view of the ASD of FIG. 3 a with a removable head;
  • FIG. 3 c illustrates an in situ view of the ASD of FIGS. 3 a and 3 b, with the removable head as positioned into the wall;
  • FIG. 3 d illustrates the ASD with removable head of FIGS. 3 a-3 c, showing a view of the way in which the removable head is attached to the body of the ASD.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • The ASD 1 takes the form of a hollow screw, with an ending that is not—as in the regular screw—a point, but one full spiral winding (360 degrees). The end of the winding is sharp and round, i.e., it is non-cutting but it is capable of perforating the wall of the hollow tube-like structure in which it is screwed. The sharp, round point 10 is bent inwardly and downwardlly in an angle of 10 to 20 degrees (.alpha.) (see FIG. 1 a). Alternatively, the sharp, round, non-cutting point 100 may bend downwardly in an angle of 90 degrees (.alpha.) (see FIG. 1 b). In this case, the end resembles a cork-screw, but the end is not situated in the middle of the final winding but on the periphery.
  • The ASD 1 shown in FIG. 2 is the same as mentioned in FIGS. 1 a-1 c, but with the body of the screw filled with thrombostatic or haemostatic material 12 that functions as a sponge against leakage of the vessel after the catheter has been removed.
  • FIGS. 3 a-3 d illustrate an ASD 200 with a removable head. This device consists of two basic parts: first, the removable head 14 with applicator 16 (i.e., a long, thin shaft with a handle 18 used to drill the head into the vessel wall) and second, a hollow ASD 20 with a hollow screw of three windings, which remains in place (i.e., in the vessel wall).
  • The removable head 14 consists of two windings, and ends in the form of a corkscrew 22 (see FIGS. 3 a, 3 b). This is, again, a round, sharp, non-cutting point 24. The head forms one whole with the applicator. Once the head 14 is in place (i.e., in the middle of the vessel wall) (see FIG. 3 c), it is removed, together with the applicator 16, from the rest of the ASD that stays within the vessel wall.
  • The second part is the body of the ASD 20 is shown in FIG. 3 d. It consists of three hollow windings attached to the head by means of internal, anti-clockwise windings. Every winding is wider than the previous one, thus expanding the vessel wall. The opening in the wall is made by the head in a non-occlusive way, i. e. the receptor vessel need not be temporarily occluded.
  • Depending on the sort of hollow structure, like a blood-vessel, the diameter of ASD may vary from 1 millimeter to 2 centimeters, or even more.
  • The ASD is made of inox material, or titanium, or super-elastic materials such as nitinol, or synthetic materials, or even resorbable materials.
  • Depending on the diameter of the blood-vessel, the material may vary from 0.1 mm to any desirable thickness.
  • The elasticity of the ASD depends on the material used.
  • The ASD is screwed one turn of 360 degrees into the receptor wall. This ensures a stable fixation on the wall. A needle or a catheter is then inserted through the ASD into the wall, and is fixed onto the ASD so that it cannot slip out of the vessel or ‘wander off’ in to the vessel.
  • The screw device can be manufactured commercially and be employed to anastomose two vessels of different or identical sizes. It can be used in all domains of vascular surgery, heart surgery, and neurosurgery.

Claims (17)

What is claimed is:
1. Surgical screw-device configured to be anchored onto a wall of a tube-like structure inside the human body, the screw-device comprising a hollow screw having a longitudinal axis passing through the hollow of the screw with a plurality of windings coaxially aligned with each other with respect to the longitudinal axis, wherein
at least two of the windings of the hollow screw are loose from each other in an axial direction of the hollow screw along the longitudinal axis,
the at least two adjacent windings anchor and stably fix the wall of the tube-like structure between them without the need for occluding the tube-like structure by respectively retaining the inner and outer surfaces of the wall between the two adjacent windings,
a front winding of said windings has a sharp perforating end rounded to a point in a conical manner, for perforating the wall of the tube-like structure in such a way that passage of the windings of the hollow screw through the wall of the tube-like structure by screwing is enabled to anchor the screw-device to the wall of the tube-like structure, and
the two adjacent windings remain coaxially aligned with each other when the screw device is anchored to the wall.
2. Surgical screw-device according to claim 1, wherein the sharp perforating end is rounded to a point for perforating the wall of the tube-like structure.
3. Surgical screw-device according to claim 2, wherein the sharp perforating end is bent inwardly and downwardly in an angle of 10 to 20 degrees with respect to the other windings.
4. Surgical screw-device according to claim 2, wherein the sharp perforating end is bent downwardly in an angle of 90 degrees with respect to the other windings.
5. Surgical screw-device according to claim 1, wherein the screw-device further comprises a hollow structure fixed onto the windings of said hollow screw.
6. Surgical screw-device according to claim 5, wherein the hollow screw is filled with thrombostatic or haemostatic material.
7. Surgical screw-device according to claim 1, wherein the hollow screw is made of inox material, or titanium, or super-elastic materials or synthetic materials, or resorbable materials.
8. Surgical screw-device according to claim 1, wherein the tube-like structure is a blood vessel or a ureter.
9. Surgical screw-device configured to be anchored onto a wall of a tube-like structure inside the human body, the screw-device comprising a hollow screw having a longitudinal axis through the hollow of the screw with a plurality of windings coaxially aligned with each other with respect to the longitudinal axis, wherein
a front winding of said plurality of windings has a sharp perforating end rounded to a point in a conical manner for perforating the wall of the tube-like structure in such a way that passage of the windings of the hollow screw by screwing is enabled to anchor the screw-device to the wall of the tube-like structure;
the front winding and at least one subsequent winding of the plurality of windings are loose from each other in axial direction of the hollow screw along the longitudinal axis and are configured to anchor and stably fix the wall of the tube-like structure between them without the need for occluding the tube-like structure by respectively retaining the inner and outer surfaces of the wall between two adjacent windings;
the hollow screw is fully open at a rear winding and inwardly from the plurality of windings, such that insertion of a needle or catheter through the screw-device into the wall of the tube-like structure is not obstructed; and
the two adjacent windings remain coaxially aligned with each other when the screw device is anchored to the wall.
10. Surgical screw-device according to claim 9, wherein said front winding is a full spiral winding of 360 degrees.
11. Surgical screw-device according to claim 9, wherein the tube-like structure is a blood vessel or a ureter.
12. Surgical screw-device according to claim 9, wherein said sharp perforating end is rounded to a point for making a round perforation in the wall of the tube-like structure and subsequently expanding said round perforation without cutting.
13. Surgical screw-device according to claim 9, wherein said sharp perforating end is bent inwardly and downwardly in an angle of 10 to 20 degrees with respect to the other windings.
14. Surgical screw-device according to claim 9, wherein said sharp perforating end is bent downwardly in an angle of 90 degrees with respect to the other windings.
15. Surgical screw-device according to claim 9, wherein the screw-device further comprises a hollow structure, such as a vessel or a catheter, fixed onto the windings of said hollow screw.
16. Surgical screw-device according to claim 9, wherein the screw-device comprises a hollow tube which is attached to a rear winding of said plurality of windings and is filled with thrombostatic or haemostatic material that functions as a sponge against leakage.
17. Surgical screw-device according to claim 9, wherein the hollow screw is made of inox material, or titanium, or super-elastic materials, or synthetic materials, or resorbable materials.
US14/161,907 2003-04-28 2014-01-23 Anchoring screw device Abandoned US20140188049A1 (en)

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US12/556,114 US8795299B2 (en) 2003-04-28 2009-09-09 Anchoring screw device
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US10/554,947 Abandoned US20060122638A1 (en) 2003-04-28 2003-07-07 Anchoring screw device
US10/554,986 Active 2024-09-27 US7749239B2 (en) 2003-04-28 2003-07-22 Screw-device for anastomosis
US11/262,290 Abandoned US20060253080A1 (en) 2003-04-28 2005-10-28 Anchoring screw device
US11/262,525 Abandoned US20060241659A1 (en) 2003-04-28 2005-10-28 Screw-device for anastomosis
US12/556,114 Active 2024-07-17 US8795299B2 (en) 2003-04-28 2009-09-09 Anchoring screw device
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US11/262,290 Abandoned US20060253080A1 (en) 2003-04-28 2005-10-28 Anchoring screw device
US11/262,525 Abandoned US20060241659A1 (en) 2003-04-28 2005-10-28 Screw-device for anastomosis
US12/556,114 Active 2024-07-17 US8795299B2 (en) 2003-04-28 2009-09-09 Anchoring screw device

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US8795299B2 (en) 2014-08-05
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